Finding the Fourth Proportional to 1,070,697.99, 1,477,053.93 and 640,895.09
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Solution
The fourth proportional to 1,070,697.99, 1,477,053.93 and 640,895.09 is: 884,130.36
Step by Step Solution
- Step 1: Write the proportion equation
1,070,697.99 : 1,477,053.93 = 640,895.09 : x - Step 2: Convert to fraction form
1,070,697.99/1,477,053.93 = 640,895.09/x - Step 3: Cross multiply
1,070,697.99x = 1,477,053.93 × 640,895.09 - Step 4: Simplify right side
1,070,697.99x = 946,636,606,420.29 - Step 5: Solve for x
x = 946,636,606,420.29/1,070,697.99 - Step 6: Final answer
x = 884,130.36
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.